16 years ago
A project I'm working on entails a medical skeleton's forearm, laying
flat on a table, which needs to rotate left and right in order to point
to various items on the table. Currently, I have a hole drilled in the
tabletop, with an extra-strength servo mounted underneath. The servo
gear sticks up through the hole, where it is screwed to the 'elbow' of
the skeletal arm, and can motivate the arm as needed.
So far so good, but the servo has to overcome an awful lot of friction
when pointing the arm at something. Would anyone be able to recommend
some kind of turntable or other setup, which could support the arm up
off the table, just high enough to eliminate most of the friction,
while allowing a servo gear to still attach at the 'elbow' and do its
job? I'm guessing that an extension of some kind might also be needed
to make the connection from the servo up through the middle of the
turntable to the arm....
Thanks in advance,